Home / 12,486,747.80-18,717,680.10-5,743,400.60

Finding the Fourth Proportional to 12,486,747.80, 18,717,680.10 and 5,743,400.60

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Solution

The fourth proportional to 12,486,747.80, 18,717,680.10 and 5,743,400.60 is: 8,609,378.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486,747.80 : 18,717,680.10 = 5,743,400.60 : x
  2. Step 2: Convert to fraction form
    12,486,747.80/18,717,680.10 = 5,743,400.60/x
  3. Step 3: Cross multiply
    12,486,747.80x = 18,717,680.10 × 5,743,400.60
  4. Step 4: Simplify right side
    12,486,747.80x = 107,503,135,116,948.06
  5. Step 5: Solve for x
    x = 107,503,135,116,948.06/12,486,747.80
  6. Step 6: Final answer
    x = 8,609,378.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.